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Finding the Fourth Proportional to 200,173.99, 276,228.54 and 109,531.72

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Solution

The fourth proportional to 200,173.99, 276,228.54 and 109,531.72 is: 151,147.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,173.99 : 276,228.54 = 109,531.72 : x
  2. Step 2: Convert to fraction form
    200,173.99/276,228.54 = 109,531.72/x
  3. Step 3: Cross multiply
    200,173.99x = 276,228.54 × 109,531.72
  4. Step 4: Simplify right side
    200,173.99x = 30,255,787,099.29
  5. Step 5: Solve for x
    x = 30,255,787,099.29/200,173.99
  6. Step 6: Final answer
    x = 151,147.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.